Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 157 insertions, 0 deletions

diff --git a/fs/ext2/CHANGES b/fs/ext2/CHANGES
new file mode 100644
index 000000000000..aa5aaf0e5911
--- /dev/null
+++ b/fs/ext2/CHANGES
@@ -0,0 +1,157 @@
+Changes from version 0.5a to version 0.5b
+=========================================
+        - Now that we have sysctl(), the immutable flag cannot be changed when
+          the system is running at security level > 0.
+        - Some cleanups in the code.
+        - More consistency checks on directories.
+        - The ext2.diff patch from Tom May <ftom@netcom.com> has been
+          integrated.  This patch replaces expensive "/" and "%" with
+          cheap ">>" and "&" where possible.
+
+Changes from version 0.5 to version 0.5a
+========================================
+        - Zero the partial block following the end of the file when a file
+          is truncated.
+        - Dates updated in the copyright.
+        - More checks when the filesystem is mounted: the count of blocks,
+          fragments, and inodes per group is checked against the block size.
+        - The buffers used by the error routines are now static variables, to
+          avoid using space on the kernel stack, as requested by Linus.
+        - Some cleanups in the error messages (some versions of syslog contain
+          a bug which truncates an error message if it contains '\n').
+        - Check that no data can be written to a file past the 2GB limit.
+        - The famous readdir() bug has been fixed by Stephen Tweedie.
+        - Added a revision level in the superblock.
+        - Full support for O_SYNC flag of the open system call.
+        - New mount options: `resuid=#uid' and `resgid=#gid'.  `resuid' causes
+          ext2fs to consider user #uid like root for the reserved blocks.
+          `resgid' acts the same way with group #gid.  New fields in the
+          superblock contain default values for resuid and resgid and can
+          be modified by tune2fs.
+          Idea comes from Rene Cougnenc <cougnenc@renux.frmug.fr.net>.
+        - New mount options: `bsddf' and `minixdf'.  `bsddf' causes ext2fs
+          to remove the blocks used for FS structures from the total block
+          count in statfs.  With `minixdf', ext2fs mimics Minix behavior
+          in statfs (i.e. it returns the total number of blocks on the
+          partition).  This is intended to make bde happy :-)
+        - New file attributes:
+          - Immutable files cannot be modified.  Data cannot be written to
+            these files.  They cannot be removed, renamed and new links cannot
+            be created.  Even root cannot modify the files.  He has to remove
+            the immutable attribute first.
+          - Append-only files: can only be written in append-mode when writing.
+            They cannot be removed, renamed and new links cannot be created.
+            Note: files may only be added to an append-only directory.
+          - No-dump files: the attribute is not used by the kernel.  My port
+            of dump uses it to avoid backing up files which are not important.
+        - New check in ext2_check_dir_entry: the inode number is checked.
+        - Support for big file systems: the copy of the FS descriptor is now
+          dynamically allocated (previous versions used a fixed size array).
+          This allows to mount 2GB+ FS.
+        - Reorganization of the ext2_inode structure to allow other operating
+          systems to create specific fields if they use ext2fs as their native
+          file system.  Currently, ext2fs is only implemented in Linux but
+          will soon be part of Gnu Hurd and of Masix.
+
+Changes from version 0.4b to version 0.5
+========================================
+        - New superblock fields: s_lastcheck and s_checkinterval added
+          by Uwe Ohse <uwe@tirka.gun.de> to implement timedependent checks
+          of the file system
+        - Real random numbers for secure rm added by Pierre del Perugia
+          <delperug@gla.ecoledoc.ibp.fr>
+        - The mount warnings related to the state of a fs are not printed
+          if the fs is mounted read-only, idea by Nick Holloway
+          <alfie@dcs.warwick.ac.uk>
+
+Changes from version 0.4a to version 0.4b
+=========================================
+        - Copyrights changed to include the name of my laboratory.
+        - Clean up of balloc.c and ialloc.c.
+        - More consistency checks.
+        - Block preallocation added by Stephen Tweedie.
+        - Direct reads of directories disallowed.
+        - Readahead implemented in readdir by Stephen Tweedie.
+        - Bugs in block and inodes allocation fixed.
+        - Readahead implemented in ext2_find_entry by Chip Salzenberg.
+        - New mount options:
+          `check=none|normal|strict'
+          `debug'
+          `errors=continue|remount-ro|panic'
+          `grpid', `bsdgroups'
+          `nocheck'
+          `nogrpid', `sysvgroups'
+        - truncate() now tries to deallocate contiguous blocks in a single call
+          to ext2_free_blocks().
+        - lots of cosmetic changes.
+
+Changes from version 0.4 to version 0.4a
+========================================
+        - the `sync' option support is now complete.  Version 0.4 was not
+          supporting it when truncating a file.  I have tested the synchronous
+          writes and they work but they make the system very slow :-(  I have
+          to work again on this to make it faster.
+        - when detecting an error on a mounted filesystem, version 0.4 used
+          to try to write a flag in the super block even if the filesystem had
+          been mounted read-only.  This is fixed.
+        - the `sb=#' option now causes the kernel code to use the filesystem
+          descriptors located at block #+1.  Version 0.4 used the superblock
+          backup located at block # but used the main copy of the descriptors.
+        - a new file attribute `S' is supported.  This attribute causes
+          synchronous writes but is applied to a file not to the entire file
+          system (thanks to Michael Kraehe <kraehe@bakunin.north.de> for
+          suggesting it).
+        - the directory cache is inhibited by default.  The cache management
+          code seems to be buggy and I have to look at it carefully before
+          using it again.
+        - deleting a file with the `s' attribute (secure deletion) causes its
+          blocks to be overwritten with random values not with zeros (thanks to
+          Michael A. Griffith <grif@cs.ucr.edu> for suggesting it).
+        - lots of cosmetic changes have been made.
+
+Changes from version 0.3 to version 0.4
+=======================================
+        - Three new mount options are supported: `check', `sync' and `sb=#'.
+          `check' tells the kernel code to make more consistency checks
+          when the file system is mounted.  Currently, the kernel code checks
+          that the blocks and inodes bitmaps are consistent with the free
+          blocks and inodes counts.  More checks will be added in future
+          releases.
+          `sync' tells the kernel code to use synchronous writes when updating
+          an inode, a bitmap, a directory entry or an indirect block.  This
+          can make the file system much slower but can be a big win for files
+          recovery in case of a crash (and we can now say to the BSD folks
+          that Linux also supports synchronous updates :-).
+          `sb=#' tells the kernel code to use an alternate super block instead
+          of its master copy.  `#' is the number of the block (counted in
+          1024 bytes blocks) which contains the alternate super block.
+          An ext2 file system typically contains backups of the super block
+          at blocks 8193, 16385, and so on.
+        - I have change the meaning of the valid flag used by e2fsck.  it
+          now contains the state of the file system.  If the kernel code
+          detects an inconsistency while the file system is mounted, it flags
+          it as erroneous and e2fsck will detect that on next run.
+        - The super block now contains a mount counter.  This counter is
+          incremented each time the file system is mounted read/write.   When
+          this counter becomes bigger than a maximal mount counts (also stored
+          in the super block), e2fsck checks the file system, even if it had
+          been unmounted cleanly, and resets this counter to 0.
+        - File attributes are now supported.  One can associate a set of
+          attributes to a file.  Three attributes are defined:
+          `c': the file is marked for automatic compression,
+          `s': the file is marked for secure deletion: when the file is
+          deleted, its blocks are zeroed and written back to the disk,
+          `u': the file is marked for undeletion: when the file is deleted,
+          its contents are saved to allow a future undeletion.
+          Currently, only the `s' attribute is implemented in the kernel
+          code.  Support for the other attributes will be added in a future
+          release.
+        - a few bugs related to times updates have been fixed by Bruce
+          Evans and me.
+        - a bug related to the links count of deleted inodes has been fixed.
+          Previous versions used to keep the links count set to 1 when a file
+          was deleted.  The new version now sets links_count to 0 when deleting
+          the last link.
+        - a race condition when deallocating an inode has been fixed by
+          Stephen Tweedie.
+